diff options
Diffstat (limited to 'src/main/java/org/openslx/filetransfer/util/FileChunk.java')
| -rw-r--r-- | src/main/java/org/openslx/filetransfer/util/FileChunk.java | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/src/main/java/org/openslx/filetransfer/util/FileChunk.java b/src/main/java/org/openslx/filetransfer/util/FileChunk.java index f302b3c..6594e31 100644 --- a/src/main/java/org/openslx/filetransfer/util/FileChunk.java +++ b/src/main/java/org/openslx/filetransfer/util/FileChunk.java @@ -1,5 +1,6 @@ package org.openslx.filetransfer.util; +import java.util.Arrays; import java.util.Iterator; import java.util.List; import java.util.zip.CRC32; @@ -28,6 +29,13 @@ public class FileChunk private boolean writtenToDisk = false; private ChunkSource localSource = null; + static final byte[] NULL_BLOCK_SHA1 = new byte[] { + 0x3b, 0x44, 0x17, (byte)0xfc, 0x42, 0x1c, (byte)0xee, 0x30, (byte)0xa9, (byte)0xad, 0x0f, + (byte)0xd9, 0x31, (byte)0x92, 0x20, (byte)0xa8, (byte)0xda, (byte)0xe3, 0x2d, (byte)0xa2 + }; + + static final long NULL_BLOCK_CRC32 = 2759631178l; + public FileChunk( long startOffset, long endOffset, byte[] sha1sum ) { this.range = new FileRange( startOffset, endOffset ); @@ -43,6 +51,20 @@ public class FileChunk if ( this.sha1sum != null || sha1sum == null || sha1sum.length != SHA1_LENGTH ) return false; this.sha1sum = sha1sum; + if ( Arrays.equals( sha1sum, NULL_BLOCK_SHA1 ) ) { + // + writtenToDisk = true; + if ( crc32 == null ) { + crc32 = new CRC32() { + @Override + public long getValue() + { + return NULL_BLOCK_CRC32; + } + }; + } + return true; + } if ( this.status == ChunkStatus.COMPLETE ) { this.status = ChunkStatus.HASHING; } |